发明名称 |
INTEGRATED BI-DIRECTIONAL AXIAL GRADIENT REFRACTIVE INDEX/DIFFRACTION GRATING WAVELENGTH DIVISION MULTIPLEXER |
摘要 |
A wavelength division multiplexer is provided that integrates an axial gradient refractive index element with a diffraction grating to provide efficient coupling from a plurality of input optical sources (each delivering a single wavelength to the device) which are multiplexed to a single polychromatic beam for output to a single output optical receiver. The device comprises: (a) means for accepting optical input from at least one optical source, the means including a planar surface; (b) a coupler element comprising: (1) an axial gradient refractive index collimating lens having a planar entrance surface onto which the optical input is incident and, (2) a homogeneous index boot lens affixed to the axial gradient refractive index collimating lens and having a planar but tilted exit surface; (c) a diffraction grating, such as a Littrow diffraction grating, on the tilted surface of the homogeneous index boot lens which combines a plurality of spatially separated wavelengths from the optical light; and (d) means to output at least one multiplexed, polychromatic output beam, the means including a planar surface. The device may be operated in the forward direction as a multiplexer or in the reverse direction as a demultiplexer. |
申请公布号 |
WO9931532(A2) |
申请公布日期 |
1999.06.24 |
申请号 |
WO1998US26368 |
申请日期 |
1998.12.11 |
申请人 |
LIGHTCHIP, INC. |
发明人 |
DUECK, ROBERT, H.;WADE, ROBERT, K.;HUNTER, BOYDE, V.;DEMPEWOLF, JOSEPH, R. |
分类号 |
G02B6/293;G02B6/28;G02B6/34;G02B6/42 |
主分类号 |
G02B6/293 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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